she did her homework yesterday evening when i saw her.哪错了

问题描述:

she did her homework yesterday evening when i saw her.哪错了

she was doing her homework yesterday evening when i saw her
昨天晚上我看见她的时候,她在写作业
这是一个具体的时刻,要用进行时,由于是昨天,所以用过去进行时.